#include <iostream>
#include <vector>
#include <numeric>

int main()
{
	using namespace std;

	int vector_size;
	cin >> vector_size;

	vector<int> v;
	for (int i = 0; i < vector_size; ++i)
	{
		int n;
		cin >> n;
		v.push_back(n);
	}

	int sum = accumulate(v.begin(), v.end(), 0);

	cout << sum << endl;

	return 0;
}